Product Detail

QSC RMX 1850HD Stereo Power Amplifier

Improved thermal performance for higher continuous power in 2-ohm or 4-ohm bridged applications. The QSC RMX 1850HD is a professional, moderately priced stereo power amplifier housed in a sturdy 2 RU rackmountable chassis, offering 360 Watts of output power at 8 Ohms, and over 1800 Watts at 4 Ohms bridged. This model is uniquely equipped with an improved thermal protection design that allows for higher continuous power, and therefore better output performance, at 2-Ohm stereo and 4-Ohm bridged applications. The RMX 1850HD also offers independent and defeatable clip limiters, and efficient power reserves created by a high current toroidal transformer, resulting in improved and consistent high level transient response. The XLR , 1/4" TRS, and barrier strip connectors cover the standard input requirements, and the selectable 30 Hz and 50 Hz low frequency filters offer additional speaker protection and increased headroom. The outputs are on either barrier strips or the ever popular Speakon connectors. The RMX 1850HD is packed with design features that contribute toward an excellent value for the budget-conscious but picky professional, and QSC is comfortable recommending the RMX series for studio monitoring or live sound system applications. FeaturesRackmountable power amplifier with unique, advanced thermal protection; higher continuous power output at 2 Ohms Stereo and 4 Ohms Bridge-Mono applicationsHigh-current toroidal transformer and filter capacitance for ensured energy reserves, improved high level transient response across variety of speaker loadsOutput device direct-mounted to heat sink for optimum thermal coupling, cooling1800 Watts maximum power outputIndependent defeatable clip limiters reduce distortion without affecting peak performance, responseSelectable low-frequency filters boost system response, protect speakers; match amplifier's range to speakers for tighter LF responseLow-noise variable speed fans with rear-to-front air flow, keep amplifiers and racks coolerIndependent DC and thermal overload protection on each channel automatically protects amplifier and speakersSpecificationsPower Rating Rating @ 1 kHz, THD=0.1%600W @ 4Ω Stereo (per channel)360W @ 8Ω Stereo (per channel)900W @ 2Ω Stereo (per channel)1200W @ 8Ω Bridged-Mono1800W @ 4Ω Bridged-MonoRating @ 20 Hz - 20 kHz, THD=0.05%550W @ 4Ω Stereo (per channel)350W @ 8Ω Stereo (per channel)1100W @ 8Ω Bridged-MonoDamping Factor: >300 (@8 Ohms)Input Sensitivity: 1.16 Vrms @8 OhmsInput Impedance 20 kOhms, balanced10 kOhms, unbalancedGain: 33dBFrequency Response: 20 Hz - 20 kHz, +/- 1dBSignal-to-Noise Ratio: 100dB (20 Hz - 20 kHz)Total Harmonic Distortion (THD): <0.02%Input Connections 2 x XLR female, balanced2 x 1/4" TRS phone, balanced2 x barrier stripsOutput Connectors 2 x pair 5-way binding posts2 x NL-4 SpeakonControls Front Panel 2 x rotary Level Control knobs1 x Power switchControls (Rear) 1 x Bridge/Stereo/Parallel Input Config. Switch1 x Clip/Limiter switch2 x Top 100 Hz HPF/Full/Sub 100 Hz LPF Filter switches2 x 33 Hz HPF/Full (infrasonic) Filter switchesIndicators 1 x green Power On LED2 x yellow Signal LEDs2 x red Clip LEDsCooling: 1 x variable-speed fan (back-to-front airflow)Power Consumption: 6 Amps (1/8 power pink noise @4 Ohms)Power Requirements: 100-120VAC, 60HzDimensions: 19 x 3.5 x 15.9" (483 x 89 x 404mm); 2UWeight: 44.5 lbs (20.2 kg)Specialties Detented Level AttenuatorsComprehensive Protection CircuitryOn/Off Muting, DC-fault Power Supply Shutdown

Suggested Retail Price:		649.99USD
Manufacturer Name:		QSC
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